The principle of action camera module is mainly based on optical imaging, image sensor technology, and image processing algorithm. Here’s a detailed explanation of how it works:
First, optical imaging principle
The action camera module receives and focuses light through the Lens to form an optical image. Lens design and optimization is crucial to image quality, which determines key parameters such as image sharpness, viewing Angle size and depth of field.
Second, image sensor technology
センサー: The image sensor is the core component of the action camera module, which is responsible for converting optical images into electrical signals. Common types of image sensors include complementary metal-oxide semiconductors (CMOS) and charge-coupled devices (CCD). Both sensors use light-sensitive diodes as their core components, which convert light into electrical signals and capture images.
Conversion process: When light is projected through the lens to the image sensor, the sensor will generate the corresponding electrical signal according to the received light intensity. These electrical signals are then sent to an image processing chip for further processing.
Third, image processing algorithm
Signal processing: The image processing chip amplifies, filters, and color-corrects the electrical signal received from the image sensor to form a digital image signal. This process involves analog-to-digital conversion (A/D conversion), which is the conversion of analog signals to digital signals for processing and storage by computers or other devices.
Image optimization: In order to improve image quality, the action camera module may also use a series of image optimization algorithms, such as noise reduction, strong light suppression, backlight compensation, color enhancement, 等. These algorithms can improve the sharpness, contrast and color reduction of the image, making the image more vivid and realistic.
Fourth, autofocus and anti-shake technology
Autofocus: Many action camera modules are equipped with autofocus to ensure that the subject is always in optimal imaging condition. Autofocus technology is usually implemented through a drive mechanism such as a voice coil motor (VCM), which can automatically adjust the position of the lens according to the distance and focal length of the object to achieve a clear imaging effect.
Anti-shake technology: In order to overcome the problem of shaking during shooting, the action camera module may also use anti-shake technology. Anti-shake technology usually senses the jitter through the built-in displacement sensor, and compensates the displacement of the lens by controlling the movement of components such as the anti-shake coil or anti-shake magnet, thus achieving a stable shooting effect.
総括する, the principle of the action camera module involves optical imaging, image sensor technology, image processing algorithm, autofocus and anti-shake technology. The combined use of these technologies enables the action camera module to capture high-quality, stable images and videos in a variety of complex environments.